Chain-guide for electrical pull-sockets.



D. P. WOLHAUPTER. CHAIN GUIDE FOR ELECTRICAL PULL SOCKETS. APPLIQA'IIONFILED JAN. 5, m1. 939,220, Patented Apr. 11, 1911.

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' chain or equivalent UNITED STATES PATENT OFFICE.

DAVID P. WOLHAUPTER, OF WASHINGTON, DISTRICT OF COLUMBIA.

CHAIN-GUIDE FOR ELECTRICAL PULL-SOCKETS.

Specification of Letters Patent.

Application filed January 5, 1911.

Patented Apr. 11, 1911. Serial No. 601,026.

'novel and practica construction of guide for the chain or equivalentconnection.

In the different types of electrical pull sockets on the market, theso-called chain guides thereof are constructed and mounted in-variousways with a view of not only properly guiding the chain or equivalentconnection as it is alternately pulled and released by the operator, butalso admitting of complete and ready removal of the'socket from theoutside casing or shell. However, in the said marketed types of pullsocket, and in the prior patented constructions known to-the applicant,the guide proper is in: the form, usually, of an eyelet commonly termedth e horn or bell through which the chain must be inserted whenthreading it 1 into position, and from which it must be withdrawn,longitudinally, whenthe parts of the switch mechanism are beingseparated for adjustmentor other urposes. In other words, the chainguides eretofore used and patented have been of the peripherally-closedtype, and are non-divided on their longitudinal axis so that thethreading and drawing out operations are necessary in putting the chainin position, and in separatin it, from the other parts of the socket anits casing.

It is therefore the purpose of the present invention to overcome theobjections to the ordinary one-piece chain-guide or horn h constructingthe saidguide or horn in such a manner as to entirely obviate thenecessity of threading the pull chain, and to permit the same to beentirely freed from confinement in the guide by the act of separatingthe cap from the shell part of the outside casing. This presents a mostadvantageous construction from .the fact that in assembling the socketwithin its casing this chain is simply laid in (at an portion of itslength) the guide, and the ltting of the cap 'adapt the latter to acasing havin to the shell part of the casing serves to hold and retainthe guide in such form as to confine the chain therein so that it maynormally carry out all of its usual functions.

The essential feature of the invention, as above indicated, isnecessarily susceptible to a wide range of structural modification,particularly with respect to the manner ofapplying the guide to thesocket or its casing, but for illustrative purposes a few of thepreferred applications of the invention are shown in t e accompanyingdrawings, in which I v Figure 1 is a perspective view of a casing forlamp sockets, the view illustrating the two members of the casingseparated and,

provided, respectively, with separate sections of the chain guide, saidview also illustrating the invention ap lied to a conventional form ofcasing wherein the cap is held to the shell by fastening screws. Fig. 2is an elevation of the same form of easing as shown 'in Fig. 1, with theimproved chain guide carried thereby. Fig. 3 is a view similar to- Fig.1, showing a modification in the construction and application of theguide, to a snap fastening between the cap and shel thereof.

Fi .4 is an elevation of the device as shown in ig. 3, but showing thecap and shell of the casing fastened together. Fig. 5 is a view similarto Fig. 3, showing the same type of easing with a snap fastening, andillustrating the separate sections of the uide as respectively carriedby the shell an cap parts of the casingl Fig. 6 is an elevation of theconstruction shown in Fig. 5 showing the relative positions of the partsjust before the locking action between'the shell and cap takes place.Fig. 7 is a view similar to Fig. 6 showing the normal locked position ofparts. a I

Like references designate corresponding parts in the several figures ofthe drawings. As indicated, the primary and distinctive feature of thepresent intention resides in so constructing the tubular or equivalentchain guide of a pull socket in such a man-.

e shell member of the y freeing the chain from its confinement in theguide and permitting it, at any portion of its length, falling out of orbeing lifted from the guide, which operations materially contribute tothe ease and facility with which a pull socket may be assembled anddisassembled, while at the same time permitting of great latitude in themanner of applying the guide to either the socket proper or to itsoutside casing.

Hence, the present invention primarily consists of a pull chain guideconsisting of a tubular or equivalent guide body, designated in itsentirety by the reference letter G, made in sections. Preferably theguide body is constructed of two parts or sections designated,respectively, by the ref- I erence numerals 1 and 2, and which when inregister form the complete guide through which the pull chainreciprocates in its operation.

The guide body may be of any suitable form or configuration, but forillustrative purposes it is shown as being of the horn or bell type withthe separate sections-1 and 2 of duplicate formation and adapted to bebrought into register to make the complete uide.

D It will be seen that the guide body is divided on its longitudinalaxis so that it will be opened up, so to speak, when the shell and capof the casing are separated.

By way of illustration, the guide, in Fig. l of the drawings, is shownas applied to a conventional form of easing consisting of the usualshell and cap members 3 and 4, which are adapted to be held together bythe well known screw-fastenings 5, 5. In this application of theinvention, the shell and cap 3 and 4 are shown as provided with therespective sections 1 and 2 of the guide body, so that the mere act ofclosing or opening the casing closes or opens the chain guide.

In the application shown in Fig. 3 the entire chain guide is illustratedas being suitably fitted to and carried by the shell designated in thisview by the reference number 6, and to which shell the cap 7 is adaptedto be secured by a snap fastening 891O (Fig. 5) which for illustrationmay be of the type shown and described in the two patents to Edgar H.Freeman, No. 927 ,344, dated July 6, 1909, and No. 972,526, datedOctober-11,

1910. Referring further to the modification shown in Fig. 3, the guidesections 1 and 2 are illustrated as being relatively hinged, as at 3 sothat one section can be I readily raisedto open up the guide, and isalso adapted to be held closed by the cap when in position.

To illustrate the great variety of modifications that may be resorted toin carry- I ing out this invention. another embodiment is suggested inFigs. 5, 6 and 7 of the drawings. In these figures of the drawings, theimproved chain guide is shown applied to thesame t pe of adjustablesocket casing illustrated 1n Fig. 3, but further shows how the separatesections of the guide may be respectively carried by the cap and shellmembers of the casing, that is to sayin the manner illustrated in Figs.1 and 2 of the drawings.

According to the present invention it is intended that the separatesections of the guide may be united to their respective supportingelements in any suitable manner or by any suitable means, but preferablyby a suitable fastening connection between each guide section and itssupport. That is to say, each guide section is preferably a dieformedstamping that may be secured to the socket casing by soldering orbrazing (which is the form of fastening connection intended to beunderstood from the drawings herein), or by any of 'the equivalentexpedients well known to brass goods manufacturers such as by rivetingor clenching as well understoodby those familiar with the art. p

Various other modifications will readily suggest themselves to thoseskilled in the art, and it will further be understood that changes inthe form, proportion, and minor details of construction may be resortedto without departing from the spirit or sacrificing any of theadvantages of the invention.

I claim,-

1. A pull chain guide for electrical pull sockets comprising a support,and a guide body openable laterally to admit the laying in and removalof the pull chain at any portion of the length of the latter.

2., The combination with an electrical pull socket including guidesupporting means, of a separable pull chain guide consisting of alongitudinally divided body.

3. A pull chain guide comprising a support, consisting of two members,and a guide body consisting of two parts held together by the connectionbetween the two members of the support.

4. A pull chain guide comprising a support consisting of two members,and a guide body consisting of two parts held together and released bythe engagement and disengagement of the support members.

5. A pull chain guide comprising, in combination with the shell and capof a socket casing,' of a guide body consisting of separate sectionsheld in register by the cap when fitted to the shell.

6. In a pull chain guide, the combination with the shell and cap of asocket casing, of a guide body consisting of two sections Whose line ofseparation is longitudinally of the-body, and which are held together bythe engagement of the cap with the shell.

7. In a pull chain guide the combination with the shell and cap of asocket casing, of a guide body consisting of two sections respectivelycarried by said shell and cap.

8. A pull chain guide comprising a twopart support and a two-part guidebody, the separate sections of the latter being respectively carried bythe separate members of said support.

9. A pull chain guide comprising a two- 10 part support and a two-partguide body, the latter belng openable laterally.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

DAVID P. WOLHAUPTER.

Witnesses:

E. H. FREEMAN, EMORY L. GRoFF.

